Improvement in compounds for artificial stone



I06. COMPOSITIONS,

COATING OR PLASTIC.

7 eI-I t1 NITED STATES Pa'I'En'T OFFICE. 222,695

JOSEPH A. GREER, on STERLING, ILLINOIS, Asslenon OF ONE-THIRD on.

111s RIGHT TO WILLIAM PITTMAN, or SAME PLACE.

IMPROVEMENT IN COMPOUNDS FOR ARTIFICIAL STONE.-

Specification forming part of Letters Patent To all whom it may concem:

Be it known that I, JOSEPH A. GBEER, of the city of Sterling, in the county of Whiteside and State of Illinois, have invented certain new and useful Compounds for the Manufacture of A'rtificial Stone; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as 'wvill enable others skilled in the art to which Take four (4) parts of ilicious sand one 1) )art of hvdraulic cemeni, Iwo (1.)parts marl @nfusoriahearth, two (2) parts of silicate of a unnnagjliurned cla one (1) part of po (le -ed I1n ysffijie; and two (2) parts of slag 'iron-fi IIIO'S. Mix these thoroughly by pass- 7 ng first through a coarse sieve and then through a fine sieve. Then make a solution of the following materials, to wit: ig

dfi'iices of otassium carbonate in two gallons of water, which is neutrallzed by pouring in suI )IlllllO acid until effervescence ceases; then add two (2) pounds oflithame one pound of oxide of iron, two (2) ounces oI'. sodium carbona e. we ialf pound of blac oxu e o 15 an ahese and one pound of calcium-afi reparation sold by'thafiname maile from chal iuulsilica; then add thirty (30) moreJgaI- ons of water making in all thirty-twd (32) gallons of water; then moisten the' with the above so fon, iiig'"'care u no o 'inaie 1 oo moistI I filiout one-smth part of the solution to one part of the powder will be about theright' proportion; then res 'o tam rinto molds of the desired form. tithe mping process avoid striking heavy blows. Short, quick, light blows are better. I prefer ta-mping to pressure. When formed in molds, take out the material and place it on a rack to dry. While dr in moisten once a day for fromfive to eig ays with the last above-named solution reduced one-halfg) with No. 222,694, dated December 16, 1879; application filed June 2, 1879.

water.

egtwcnty-five andfive-tenths pounds; oil

'1wo to three hours, then add one-fifth (W the whole of water. Leave the stone in this 7 tank one (1) hour; then take them out and p let them l 1;y thirty-six (36) hours; then place 7 02 the stone In another tank containing tion formed by dissolving three ounces of a um in each gallon of water. Leave the stone in this last tank about twenty (20) minutes; then take them to the drying-yard, and. in twelve hours they are ready for use.

For any desired color use in the first-named composition the mm oxide corresponding in color to that es1 re Where tanks are not convenient the two so lutions'last named may be applied with a flat brush.

The union of the two last-named solutions form an insoluble coating applicable to brick or any stone. 1

What I claim as my invention, and desire to secure by Letters Patent, is-- V 1. A compound for artificial stone, consisting of the ingredients first named-herein, in combination with the solutions named, in the manner substantially as described, and for the purpose named.

e 2. A compound for coating brick and stone, consisting of a solution of carbonate of soda, two and one-tenth pounds, and water, twentyfive and five-tenths pounds, boiled togethertwo or three hours, and one-fifth more water added,

and a solution of three ounces of alum in each gallon of water, in combination, substantially as shown, and for the purpose mentioned.

In testimony that I claim the foregoing I have hereunto set my hand this 23d day of May, 1879."

I 1 JOSEPH A. eannn. I Witnesses: I

JAS. S. THoMrsoN, JoHN J.MEeUIRn. 

